Shulou(Shulou.com)06/02 Report--

The main content of this article is to explain "what is WCF". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn what WCF is.

What is WCF?

From where WCF is located, it is included in .NET 3.0 (as well as .NET 3.5). We note that the difference between .NET 3.0 and .NET 2.0 is that .NET 3.0 includes WCF, WPF, WF (or CardSpace). Therefore, it does not seem to be too much for us to think that WCF is part of the .NET Framework. Crucially, WCF cannot exist separately from the .NET Framework (but non-WCF clients can call WCF services), so although WCF is specifically launched by Microsoft to meet the development needs of SOA solutions, it is not a framework such as Spring or Struts, nor is it a container or server like EJB. Microsoft really fits the role of SOA enterprise application server, I think it should be Biztalk Server.

Strictly speaking, a WCF is a collection of specialized classes dedicated to service customization, publishing and running, and messaging and processing, which is called a "class library." These classes are organized in a certain way, work together, and provide a unified programming model for developers. The reason why WCF is special is that the scenario it deals with is different from that of ordinary .NET class libraries. It is mainly used to deal with the transmission and processing of messages between processes and even machines. At the same time, it introduces the design idea of SOA, which publishes and runs as services, so as to facilitate clients to invoke services across processes and machines. In fact, WCF is the aggregator of Microsoft's programming technology for distributed processing, which integrates DCOM, Remoting, Web Service, WSE and MSMQ, thus reducing the learning curve of distributed system developers and unifying the development standards.

WCF differs from other class libraries in that WCF fully embodies the concept of the runtime environment. What is WCF? For early developers using WCF, they may know that if you want to develop WCF under .NET 2.0, you also need to download a special version of Runtime Component 3.0, which includes WCF, WF, and so on. There has always been a concept of "hosting" in .NET, and the entire .NET Framework (or CLR) can be thought of as a large host, just like the virtual machine of Java. As WCF has special requirements for services, for the server, it is necessary to publish and run the service; for the client, it is necessary to invoke the service; therefore, for developers, it is necessary to write relevant code to define, publish, run and invoke the service. Services can only run on specific hosts, which can be console application processes, Windows or Web application processes, Windows service processes, or the most commonly used IIS hosts. Inside the host, the channel stack is encapsulated, which includes the processing of protocols, coding, message transmission, and agents. At the top of the channel layer, an advanced runtime is also provided for application developers.

Therefore, we can think of WCF as part of .NET Framework 3.x, which contains the runtime environment for service customization, publishing and running, and messaging and processing, as well as a collection of related classes, which provides SDK for developing and deploying services under the Windows platform.

At this point, I believe you have a deeper understanding of "what WCF is", might as well come to the actual operation of it! Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.